DTW Coco- Learning by doing - 600HPS multi strain SCROG

[greenops]

Day 29

So i'm now realizing, that growing in Coco requires more work than i expected. In soil i was able to water every 5-6 days. Now, I have to mix the feeding solution every three days, plus daily maintenance check and all. Not that i regret anything, i like to be around my plants anyway. Hopefully it will all be worth it in the end.

Yeah, I'm still hoping to get some answers regarding the symptoms my plants are showing. I find it quite challenging to keep em happy. Although I believe the 2 plants I posted in my last update are just genetically inferior, as the other plants have somewhat recovered.

I topped all of them couple days ago. The bigger plants got 6 nodes, while I left 4 nodes on the smaller plants.

Change of plan. I'm not going to scrog 6 plants anymore. I'm going with 8 or 9 now. I need to finish this grow at a certain time due to a planned vacation in spring. Obviously i have to veg longer with 6 plants, if I go with 8 or 9, i can fill the screen much sooner.

2 days ago i started feeding them twice during the light cycle. Once when lights go on, and the second one 6 hours before lights go off. This has increased the rH in the tent, to 40% and peaks at 60%.

I noticed the growth increased significantly the day after. But, the younger plants that didn't claw before, are starting to show some claws now. So I diluted the solution with more water. I really need to tone down the strength of the feed. I never went more than 80% of what they recommend, but i'll go with 65% next time.

At this stage, the plants are starting to show their character. The big surprise is the Lost Coast OG. Looking very strong and healthy, spotless, but the upper leaves just started to claw a lil bit, after i started with the 2x feed. So is the Trainwreck, but it's the smallest and youngest in this batch. The Headband 2 is growing like crazy as well, it has lots of roots coming out of the bottom of the pot, something i have never seen before. I'll most likely ditch the HeBa1, which popped first but is the smallest and got all kinds of curling, twists, burns and whatnot, plus the Skywalker 1 who also seems a bit bitchy.

Alright, in the next couple days i'll build the scrog frame and the plants will get their PM vaccination in form of a local fungicide spray product.



@Nek Minnit, no I don't have calmag. I thought the entire Hesi Coco line should supply all that. I used to water once a day, and starting veg day 27 i'm feeding them twice a day. I never gave them the full dose, max was 80%. I'm sure i get more than 10% run off, maybe 20-30%.

 

[Nek Minnit]

run off is good then,, im not familiar with that nute range,, just googled it,, i strongly recommend u buy good quality calmag,, and flush ur babies with a batch of this with an e/c of about 1 or .8,, calmag is prob the most important product when growing in coco,, it should be run from start to finish,, i have heard some don't use during flower,, i run it from start to finish at a rate of 2ml per litre,, with rain water that has an e/c reading of .1,,, i haven't checked in ages but i think it brings the e/c up to about 1,, then i add my canna cooc range of nutes,, and finish with a solution with an e/c of around 1.8,, run this whole grow with no problems,, i also foliar feed them calmag once a week during veg at the same rate,, 2ml per litre with wetting agent,, if ur ladies are lacking calcium or magnesium they will not be able to uptake other nutrients,, i would definately be flushing with calmag to charge the coco again and adding it to ur nute solution,,

 

[Buddler]

Greenops starting to take off eh, hard to grow multistrain with the same fertilizer strength as each strain needs dialing .some curl some love it etc. ive found OG crosses don't like too much N ,long as new growth looks good damaged leaves will never recover pluck off as plants grow,small pots will need multi feeds cause they should take off soon .you need a res and a dripper set up then you,ll rock coco as least get a garbage can and mix enough for a week of hand feeding with runoff and light PPM S. Bud..

 

[Buddler]

Pardon me I see your set up with auto feed . Must be doing good..updates ?

 

[greenops]

Day 36 / Day 2 12/12

A couple new updates from my lil hidden garden:

They got thoroughly showered with this local PM fungicide spray we got. It's chemical based but is safe for fruits and can be used 3 weeks before harvest. With cannabis, 1 application during veg should be enough to prevent an outbreak... or so they say. I don't like the idea of chemicals in my plants so I dont wanna use it again, however, i want to avoid PM at all costs.. my grow is looking really packed already, so i'm contemplating of using it one last time before buds are produced.

The healthy plants adapted well to the transplant and double feed, hence they really took off during this week. I fixed the scrog net about 5 days ago to keep em in check.
OG18 is easily the tallest with wide internode spacing.
Unfortunately, the Headband 1 (first to pop in this batch) and Skywalker 1 just seemed very weak as they fell behind. The younger plants, Green Crack and Fruity Chronic Juice already had much thicker stems than them. Being the youngest of the group, the Trainwreck is still the smallest. It's supposed to be sativa dom, but this here is clearly indica with its short but stocky stature. Luckily i found a report online about the these phenos and i was told they were killer!

So I decided to get rid of the Heba1 and Skywa1, and kept 8. I positioned them in 3 colums;

1st column: Skywalker 2, Lost Coast OG, Headband 2
2nd column: FrutiyChronicJuice and Trainwreck
3rd column: Headband 3, OG18, Green Crack

I placed the two smalles in the middle. Those two havent even reached the screen yet, but i can see this grow will get packed. I'm just hoping that this won't cause another PM infestation. I got 1 large fan and 5 clip fans in there to improve air circulation. I'm still open to get rid of more plants though, if that's what should be done, but I just luv for this to work out cuz it will push the yield and give me more variety.

I'm not sure if my conclusion is right, but i learned that when feeding more than once, the EC should be reduced. I use to feed them once a day with 0.9, when i started to give em two feeds per day, they started to show signs of nute burn. The OG18 is especially sensitive. I took a picture of the leave as u can see below. Now I'm only giving them an ec of 0.5. The GreenCrack, Trainwreck, Fruity Chronic Juice and the Lost Coast OG can clearly take more but they will have to adjust to smaller feeds. Unfortunately the double feed is also causing the rH to rise up to 60% but usually stays at 45%.

Like Nek Minnit mentioned above, I'm thinking about using CalMag. Actually i don't notice any deficiencies yet, but i'm also not very good at identifying symptoms anyway. Just thought it might come handy.

I switched the lights to 600w for the first time and i'll try to maintain the temps, but if it gets to hot ill go back to 400. I never lollipopped or even heavily trimmed my plants, but there are too many large fan leaves in the way so i think i will give it a go in the next couple days to some plants. Any tips for that?

Another question, In soil i continued with the grow nutes during the first 10 days or after switching 12/12, as they are in need of N for the stretch. Should I do the same in Coco?

Any more tips on how to use Calmag, especially for these nute sensitive bishes? =)


<<>>

 

[Buddler]

Day 36 / Day 2 12/12

A couple new updates from my lil hidden garden:

They got thoroughly showered with this local PM fungicide spray we got. It's chemical based but is safe for fruits and can be used 3 weeks before harvest. With cannabis, 1 application during veg should be enough to prevent an outbreak... or so they say. I don't like the idea of chemicals in my plants so I dont wanna use it again, however, i want to avoid PM at all costs.. my grow is looking really packed already, so i'm contemplating of using it one last time before buds are produced.

The healthy plants adapted well to the transplant and double feed, hence they really took off during this week. I fixed the scrog net about 5 days ago to keep em in check.
OG18 is easily the tallest with wide internode spacing.
Unfortunately, the Headband 1 (first to pop in this batch) and Skywalker 1 just seemed very weak as they fell behind. The younger plants, Green Crack and Fruity Chronic Juice already had much thicker stems than them. Being the youngest of the group, the Trainwreck is still the smallest. It's supposed to be sativa dom, but this here is clearly indica with its short but stocky stature. Luckily i found a report online about the these phenos and i was told they were killer!

So I decided to get rid of the Heba1 and Skywa1, and kept 8. I positioned them in 3 colums;

1st column: Skywalker 2, Lost Coast OG, Headband 2
2nd column: FrutiyChronicJuice and Trainwreck
3rd column: Headband 3, OG18, Green Crack

I placed the two smalles in the middle. Those two havent even reached the screen yet, but i can see this grow will get packed. I'm just hoping that this won't cause another PM infestation. I got 1 large fan and 5 clip fans in there to improve air circulation. I'm still open to get rid of more plants though, if that's what should be done, but I just luv for this to work out cuz it will push the yield and give me more variety.

I'm not sure if my conclusion is right, but i learned that when feeding more than once, the EC should be reduced. I use to feed them once a day with 0.9, when i started to give em two feeds per day, they started to show signs of nute burn. The OG18 is especially sensitive. I took a picture of the leave as u can see below. Now I'm only giving them an ec of 0.5. The GreenCrack, Trainwreck, Fruity Chronic Juice and the Lost Coast OG can clearly take more but they will have to adjust to smaller feeds. Unfortunately the double feed is also causing the rH to rise up to 60% but usually stays at 45%.

Like Nek Minnit mentioned above, I'm thinking about using CalMag. Actually i don't notice any deficiencies yet, but i'm also not very good at identifying symptoms anyway. Just thought it might come handy.

I switched the lights to 600w for the first time and i'll try to maintain the temps, but if it gets to hot ill go back to 400. I never lollipopped or even heavily trimmed my plants, but there are too many large fan leaves in the way so i think i will give it a go in the next couple days to some plants. Any tips for that?

Another question, In soil i continued with the grow nutes during the first 10 days or after switching 12/12, as they are in need of N for the stretch. Should I do the same in Coco?

Any more tips on how to use Calmag, especially for these nute sensitive bishes? =)


<<>>

Problem with cal mag it adds N try Epsom salts as it wont mess with N and adds mag and sulphur to your base, multi feeds with good run off, rising RH is a good sign that your plants are growing just up exhaust fan to compensate also u want high RH during stretch. u might have to mix separate nutes for sensitive OG,s and if you want calmag up base nutes EC. also N in Coco I keep feeding till fifth week then drop it. letting them dry out will up your ec keepin them wet is better once the roots are there get the runoff too. Hope that helps you out a bit ...

 

[TheCleanGame]

Problem with cal mag it adds N try Epsom salts as it wont mess with N and adds mag and sulphur to your base

Yep yep... no problem with a bit of extra sulphur. I have big issues with extra nitrogen in flower as I prefer buds that go *thunk* in the tray.

Just cut down 2 hermies at 30 days and nothing but *thunk* as the buds were tossed in the trim tray.

Tougher to produce that when using Cal/Mag unless your nute profile is already low in nitrogen.

Keep it Clean!
p.s. there's a documented decline in cannabinoid production when nitrogen exceeds the levels needed for flowering. The more 'excess' nitrogen in the nutrients, the lower the overall THC levels turn out to be.

 

[greenops]

I did a quick search on where to find epsom salt in my area. The pharmacy has it... can i use that? Honestly I've never heard of epsom salt so i got no clue.

Buddler, if i had the time to maintain two separate tanks i'd do it. But unfortunately i have to spend a lota time at the office so i keep that one tank that adjusts to the OGs needs. I might supply the hungrier plants by hand watering from time to time.

TheCleanGame, "Tougher to produce that when using Cal/Mag unless your nute profile is already low in nitrogen." sounds like some important piece of info but i just dont get it. your saying when using calmag its harder to produce the thunk buds? and with thunk buds u mean big buds? sorry man lol... me no speakin ingles. But the last part i got, i will soon stop givin N.

 

[Nek Minnit]

looking real good bloke,, that tent will be chockers,, I hope u have some good ventilation to keep the r/h in check,, I have never heard of too much n with using calmag,, but if u feel,, u could always reduce ur nutes to compensate,, keep the updates comin brother,, and Merry Christmas,,

 

[Coconutz]

Yeah bro, spraying anything on your plants had the potential to damage the foliage. You should always try to correct the atmosphere before spraying a bunch of crap on you indoor ladies is never the first thing you think you need to do. Especially if you don't PH adjust the solution before you spray it on. Nothing should ever touch your plants without ph adjusting to 5.5-6.0. What the hydro store guy should have sold you was a ph meter or test strips. Adding more shit never fixes the problem. He was trippin.

Untrue.
I dont even bother to ph foliar sprays unless they are way out of range for the nutes.
6.0-7.0 seems fine, but Im sure some people go even higher.
A low PH like 5-5.5 is not such a good idea if you dont like PM

 

[Bush Dr]

Read HGO's thread, you need to check everything everyday to be successful

Hesi nutes are aggressive, stop feeding anything and only give water for the last 2 weeks, there's too much N in their nutes

pH should be around 6.2 for the rez, foliar it doesn't matter

Microbial can be added to the rez which will help with the PM

Where are you? Plant Magic nutes are the best, their Magne+Cal is unbeatable IMHO

 

[greenops]

Read HGO's thread, you need to check everything everyday to be successful

Hesi nutes are aggressive, stop feeding anything and only give water for the last 2 weeks, there's too much N in their nutes

pH should be around 6.2 for the rez, foliar it doesn't matter

Microbial can be added to the rez which will help with the PM

Where are you? Plant Magic nutes are the best, their Magne+Cal is unbeatable IMHO

U mean HGO's Coco thread right? That's one of the first threads i went thru after i made my decision to go coco. but thanks for reminding me because i dont remember much of it anymore lol...
Thanks, i didnt know that about Hesi. I'll switch to the bloom nutes as soon as i finish whats in the rez.
What do u mean by microbial? I'd like to get it if it helps prevent PM safely. Im located in central europe and never heard of Plant Magic. But i'll look into it maybe its available somewhere.

 

[greenops]

Is anyone else regularly spraying their plants with hydrogen peroxide?
It says hydrogen peroxide kills spores, so i planned to use it regularly. Couple guys swear by it but then some dude in another forum said that it's not good for prevention, because it kills beneficial bacteria as well!? Just wanted to double check this info...

Anyway, wish u all happy holidaaaze... ill blaze a fat one with u! Peace n respect.

 

[greenops]

Day 45 / Day 11 12/12

As I mentioned in my last update, I stopped feeding the veg nutes as I emptied the tank, and started to give em a 0.5 ec dose of the Coco Bloom nute to test how they react. No complaints from the nute sensitive Kushes yet, so I'll start increasing ec gradually.

The screen is pretty much full now. However, Trainwreck, being the stocky indica pheno that she is, just reached the screen.
Some branches of the larger plants have almost no place to go, so I'm going to supercrop a bit and LST some to the screen. I don't have much vertical space left that's why i gotta keep em low as possible.

Pistils are starting to be more visible now throughout the scrog, but no bushes yet. Perhaps the supposedly high concentration of N in the Hesi Nutes delayed flowering a bit.

However, there's one thing that extremely bothers me. The packed screen and rising RH increased my paranoia of getting PM again. As I dont want to throw away another crop, i end up using the chemical fungicide mentioned in my previous posts, in hopes of not having to worry about PM anymore.

Before I applied it I consulted with an old friend, who happens to work at a grow shop. He told me its fine as long as the plants dont have buds. Since it's being used for food crops up to 3 weeks to harvest, and me using it at least 10 weeks before harvest I should be fine he said. After hearing that i immediately sprayed down the plants, hoping not to worry about PM anymore.

But now after doing some research on the contents of the pesticide i used, i wished i never used it...

DITHIANON http://toxnet.nlm.nih.gov/cgi-bin/sis/search/a?dbs+hsdbterm+@DOCNO+7448

Difenoconazole http://toxnet.nlm.nih.gov/cgi-bin/sis/search/a?dbs+hsdbterm+@DOCNO+7448

I don't have the slightest idea how these studies have been conducted. They could have tested in high dosages and what not. I'm hoping that by the time I harvest, that shit will be out of my plants' system, or at least have such a low dose of that stuff, that it doesn't affect anyone's health.

What u guys think, did i screw up or everything still good?


,..,,..,

 

[Buddler]

Looking good Greenops. Not sure what your spraying on them ,as far as N goes they use a lot first 3 weeks or so of flower .U are runnin coco nutes . don't forget to prune out good under the screen after stretch for good airflow. I think your getting dialed in..B

 

[Lesterburnum]

Remember cold air in at bottom and hot air out on top. Pull that air through the plants. Or push air through them. Haha

 

[Sleeper7784]

Untrue.
I dont even bother to ph foliar sprays unless they are way out of range for the nutes.
6.0-7.0 seems fine, but Im sure some people go even higher.
A low PH like 5-5.5 is not such a good idea if you dont like PM

Look Bro I don't know who made YOU the all mighty book on cannabis growing, but don't disrespect me and come on somebody's thread who I'm trying to help, and flat out tell me...

Untrue.

Fuck that!

This is my opinion, from personal experiences.

I'm not the type of person that jumps into people's threads and feeds them bullshit information that I've read or heard from some other source.

First off, IMO, he shouldn't be spraying anything on his plants, its never good practice. Unless he's one of those creepy foliar feeding fuckers. Lol


I'm not here to argue about exact ph.

For one I NEVER said 5.0... Or anything below 5.5

I run my garden indoor coco DTW on ph 5.5-6.0 with excellent results. And the balls to back it.


My outdoor in coco/potting soil mix I run around 6.0-6.2.
Outdoor is the one situation I would, and have, applied preventive maintenance sprays.

For me it doesn't make sense to spray anything outside of those ph ranges.

Plants absorb the water in the sprays and if its outside of what your normally feeding your plants will suffer.... Your throwing the whole balance of your garden off. Gardening is about consistency and flow. Once you master that quality will increase.


The real root of the PM needs to be addressed and his entire op needs to be properly sanitized, and dryer out.


Then air flow and humidity control needs to be focussed on.

I mean to say what I said is, not true is a little extreme. You don't know what I've experienced. We're all just trying to help eachother reach our common goals.

 

[Sleeper7784]

Day 45 / Day 11 12/12

As I mentioned in my last update, I stopped feeding the veg nutes as I emptied the tank, and started to give em a 0.5 ec dose of the Coco Bloom nute to test how they react. No complaints from the nute sensitive Kushes yet, so I'll start increasing ec gradually.

The screen is pretty much full now. However, Trainwreck, being the stocky indica pheno that she is, just reached the screen.
Some branches of the larger plants have almost no place to go, so I'm going to supercrop a bit and LST some to the screen. I don't have much vertical space left that's why i gotta keep em low as possible.

Pistils are starting to be more visible now throughout the scrog, but no bushes yet. Perhaps the supposedly high concentration of N in the Hesi Nutes delayed flowering a bit.

However, there's one thing that extremely bothers me. The packed screen and rising RH increased my paranoia of getting PM again. As I dont want to throw away another crop, i end up using the chemical fungicide mentioned in my previous posts, in hopes of not having to worry about PM anymore.

Before I applied it I consulted with an old friend, who happens to work at a grow shop. He told me its fine as long as the plants dont have buds. Since it's being used for food crops up to 3 weeks to harvest, and me using it at least 10 weeks before harvest I should be fine he said. After hearing that i immediately sprayed down the plants, hoping not to worry about PM anymore.

But now after doing some research on the contents of the pesticide i used, i wished i never used it...

DITHIANON http://toxnet.nlm.nih.gov/cgi-bin/sis/search/a?dbs+hsdbterm+@DOCNO+7448

Difenoconazole http://toxnet.nlm.nih.gov/cgi-bin/sis/search/a?dbs+hsdbterm+@DOCNO+7448

I don't have the slightest idea how these studies have been conducted. They could have tested in high dosages and what not. I'm hoping that by the time I harvest, that shit will be out of my plants' system, or at least have such a low dose of that stuff, that it doesn't affect anyone's health.

What u guys think, did i screw up or everything still good?

,..,,..,

I apologize foremost, for the unnecessary clash of minds.

I think things in your garden are looking great despite your worries and the small problems earlier on. Keep on rocken it. Can't wait to see those indica buds.

 

[Rambro]

ever think of putting a fan under the screen to keep moisture levels down and prevent PM? might have to water a bit more but it might help.

 

[tleaf jr.]

looking good man seem like youre getting over the learning curve of the coco , I actually just started some clones in coco for the first time myself so im glad I came upon this thread thanks mate! keep it green